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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "OpaqueRectTrackingContentLayerDelegate.h"
#include "Color.h"
#include "GraphicsContext.h"
#include "IntRect.h"
#include "PlatformContextSkia.h"
#include "skia/ext/platform_canvas.h"
#include <public/WebFloatRect.h>
#include <public/WebRect.h>
#include <gtest/gtest.h>
using WebKit::WebRect;
using WebKit::WebFloatRect;
using namespace WebCore;
namespace {
struct PaintCallback {
virtual void operator()(GraphicsContext&, const IntRect&) = 0;
};
class TestLayerPainterChromium : public GraphicsContextPainter {
public:
TestLayerPainterChromium(PaintCallback& callback) : m_callback(callback) { }
virtual void paint(GraphicsContext& context, const IntRect& contentRect) OVERRIDE
{
m_callback(context, contentRect);
}
private:
PaintCallback& m_callback;
};
// Paint callback functions
struct PaintFillOpaque : public PaintCallback {
virtual void operator()(GraphicsContext& context, const IntRect& contentRect) OVERRIDE
{
Color opaque(255, 0, 0, 255);
IntRect top(contentRect.x(), contentRect.y(), contentRect.width(), contentRect.height() / 2);
IntRect bottom(contentRect.x(), contentRect.y() + contentRect.height() / 2, contentRect.width(), contentRect.height() / 2);
context.fillRect(top, opaque, ColorSpaceDeviceRGB);
context.fillRect(bottom, opaque, ColorSpaceDeviceRGB);
}
};
struct PaintFillAlpha : public PaintCallback {
virtual void operator()(GraphicsContext& context, const IntRect& contentRect)
{
Color alpha(0, 0, 0, 0);
context.fillRect(contentRect, alpha, ColorSpaceDeviceRGB);
}
};
struct PaintFillPartialOpaque : public PaintCallback {
PaintFillPartialOpaque(IntRect opaqueRect)
: m_opaqueRect(opaqueRect)
{
}
virtual void operator()(GraphicsContext& context, const IntRect& contentRect)
{
Color alpha(0, 0, 0, 0);
context.fillRect(contentRect, alpha, ColorSpaceDeviceRGB);
IntRect fillOpaque = m_opaqueRect;
fillOpaque.intersect(contentRect);
Color opaque(255, 255, 255, 255);
context.fillRect(fillOpaque, opaque, ColorSpaceDeviceRGB);
}
IntRect m_opaqueRect;
};
#if defined(SK_SUPPORT_HINTING_SCALE_FACTOR)
struct HintingScaleCallback : public PaintCallback {
HintingScaleCallback()
: hintingScale(SK_Scalar1)
{
}
virtual void operator()(GraphicsContext& context, const IntRect& contentRect)
{
hintingScale = context.platformContext()->hintingScaleFactor();
}
SkScalar hintingScale;
};
#endif
#define EXPECT_EQ_RECT(a, b) \
EXPECT_EQ(a.x, b.x); \
EXPECT_EQ(a.width, b.width); \
EXPECT_EQ(a.y, b.y); \
EXPECT_EQ(a.height, b.height);
class OpaqueRectTrackingContentLayerDelegateTest : public testing::Test {
public:
OpaqueRectTrackingContentLayerDelegateTest()
: m_skCanvas(adoptPtr(skia::CreateBitmapCanvas(canvasRect().width, canvasRect().height, false)))
{
}
SkCanvas* skCanvas() { return m_skCanvas.get(); }
WebRect canvasRect() { return WebRect(0, 0, 400, 400); }
private:
OwnPtr<SkCanvas> m_skCanvas;
};
TEST_F(OpaqueRectTrackingContentLayerDelegateTest, testOpaqueRectPresentAfterOpaquePaint)
{
PaintFillOpaque fillOpaque;
TestLayerPainterChromium painter(fillOpaque);
OpaqueRectTrackingContentLayerDelegate delegate(&painter);
WebFloatRect opaqueRect;
delegate.paintContents(skCanvas(), canvasRect(), false, opaqueRect);
EXPECT_EQ_RECT(WebFloatRect(0, 0, 400, 400), opaqueRect);
}
TEST_F(OpaqueRectTrackingContentLayerDelegateTest, testOpaqueRectNotPresentAfterNonOpaquePaint)
{
PaintFillAlpha fillAlpha;
TestLayerPainterChromium painter(fillAlpha);
OpaqueRectTrackingContentLayerDelegate delegate(&painter);
WebFloatRect opaqueRect;
delegate.paintContents(skCanvas(), canvasRect(), false, opaqueRect);
EXPECT_EQ_RECT(WebFloatRect(0, 0, 0, 0), opaqueRect);
}
TEST_F(OpaqueRectTrackingContentLayerDelegateTest, testOpaqueRectNotPresentForOpaqueLayerWithOpaquePaint)
{
PaintFillOpaque fillOpaque;
TestLayerPainterChromium painter(fillOpaque);
OpaqueRectTrackingContentLayerDelegate delegate(&painter);
delegate.setOpaque(true);
WebFloatRect opaqueRect;
delegate.paintContents(skCanvas(), canvasRect(), false, opaqueRect);
EXPECT_EQ_RECT(WebFloatRect(0, 0, 0, 0), opaqueRect);
}
TEST_F(OpaqueRectTrackingContentLayerDelegateTest, testOpaqueRectNotPresentForOpaqueLayerWithNonOpaquePaint)
{
PaintFillOpaque fillAlpha;
TestLayerPainterChromium painter(fillAlpha);
OpaqueRectTrackingContentLayerDelegate delegate(&painter);
delegate.setOpaque(true);
WebFloatRect opaqueRect;
delegate.paintContents(skCanvas(), canvasRect(), false, opaqueRect);
EXPECT_EQ_RECT(WebFloatRect(0, 0, 0, 0), opaqueRect);
}
TEST_F(OpaqueRectTrackingContentLayerDelegateTest, testPartialOpaqueRectNoTransform)
{
IntRect partialRect(100, 200, 50, 75);
PaintFillPartialOpaque fillPartial(partialRect);
TestLayerPainterChromium painter(fillPartial);
OpaqueRectTrackingContentLayerDelegate delegate(&painter);
WebFloatRect opaqueRect;
delegate.paintContents(skCanvas(), canvasRect(), false, opaqueRect);
EXPECT_EQ_RECT(WebFloatRect(partialRect.x(), partialRect.y(), partialRect.width(), partialRect.height()), opaqueRect);
}
TEST_F(OpaqueRectTrackingContentLayerDelegateTest, testPartialOpaqueRectTranslation)
{
IntRect partialRect(100, 200, 50, 75);
PaintFillPartialOpaque fillPartial(partialRect);
TestLayerPainterChromium painter(fillPartial);
OpaqueRectTrackingContentLayerDelegate delegate(&painter);
WebFloatRect opaqueRect;
WebRect contentRect(11, 12, 389, 388);
delegate.paintContents(skCanvas(), contentRect, false, opaqueRect);
EXPECT_EQ_RECT(WebFloatRect(partialRect.x(), partialRect.y(), partialRect.width(), partialRect.height()), opaqueRect);
}
#if defined(SK_SUPPORT_HINTING_SCALE_FACTOR)
TEST_F(OpaqueRectTrackingContentLayerDelegateTest, testHintingScaleFactorSet)
{
HintingScaleCallback callback;
TestLayerPainterChromium painter(callback);
OpaqueRectTrackingContentLayerDelegate delegate(&painter);
SkScalar hintingScale = SkIntToScalar(2);
SkCanvas canvas;
canvas.scale(hintingScale, hintingScale);
EXPECT_EQ(callback.hintingScale, SK_Scalar1);
IntRect rectA;
WebFloatRect rectB;
delegate.paintContents(&canvas, rectA, false, rectB);
EXPECT_EQ(callback.hintingScale, hintingScale);
}
#endif
} // namespace
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